Operation - DeWalt D28142 Instruction Manual

ENGLISH

OPERATION

WARNING: To reduce the risk
of serious personal injury, turn
tool off and disconnect tool from
power source before making any
adjustments or removing/installing
attachments or accessories. Before
reconnecting the tool, depress and
release the trigger switch to ensure that
the tool is off.
Paddle Switch (fi g. 1, 3)
CAUTION: Hold the side handle and
body of the tool firmly to maintain
control of the tool at start up and during
use and until the wheel or accessory
stops rotating. Make sure the wheel has
come to a complete stop be fore laying
the tool down.
NOTE: To reduce unexpected tool movement,
do not switch the tool on or off while under load
conditions. Allow the grinder to run up to full speed
before touching the work surface. Lift the tool from
the surface before turning the tool off. Allow the tool
to stop rotating before putting it down.
1. To turn the tool on, push the lock-off lever (b)
toward the back of the tool, then depress the
paddle switch (a). The tool will run while the
switch is depressed.
2. Turn the tool off by releasing the paddle switch.
WARNING: Do not disable the lock-off
lever. If the lock-off lever is disabled, the
tool may start unexpectedly when it is
laid down.
CAUTION: Allow the tool to reach full
speed before touching tool to the work
surface. Lift the tool from the work
surface before turning the tool off.
SPINDLE LOCK
The spindle lock (c) is provided to prevent the
spindle from rotating when installing or removing
wheels. Operate the spindle lock only when the tool
is turned off, unplugged from the power supply, and
has come to a complete stop.
CAUTION: To reduce the risk of
damage to the tool, do not engage the
spindle lock while the tool is operating.
Damage to the tool will result and
attached accessory may spin off
possibly resulting in injury.
To engage the lock, depress the spindle lock button
and rotate the spindle until you are unable to rotate
the spindle further.
30
Fitting and removing a grinding or
cutting disc (fi g. 1, 4, 5)
1. Place the tool on a table, guard up.
2. Fit the backing flange (i) correctly onto the
spindle (o) (fig. 4).
3. Place the disc (n) on the backing flange (i).
When fitting a disc with a raised center, make
sure that the raised centre (j) is facing the
backing flange (i).
4. Screw the threaded clamp nut (h) onto the
spindle (o) (fig. 5):
a. The ring on the threaded clamp nut (h) must
face towards the disc when fitting a grinding
disc (fig. 5A);
b. The ring on the threaded clamp nut (h) must
face away from the disc when fitting a cutting
disc (fig. 5B).
5. Press the spindle lock button (c) and rotate the
spindle (o) until it locks in position.
6. Tighten the threaded clamp nut (i) with the two-
pin spanner supplied.
7. Release the spindle lock.
8. To remove the disc, loosen the threaded clamp
nut (h) with the two-pin spanner.
METAL APPLICATIONS
• When using the tool in metal applications, make
sure that a residual current device (RCD) has
been inserted to avoid residual risks caused by
metal swarf.
• If the power supply is shut off by the RCD, take
the tool to authorised D
E
WARNING: In extreme working
conditions, conductive dust can
accumulate inside the machine housing
when working with metal. This can result
in the protective insulation inthe machine
becoming degraded with a potential risk
of an electrical shock.
To avoid build-up of metal swarf inside the machine,
we recommend to clear the ventilation slots on a
daily basis. Refer to Maintenance.
USING FLAP DISCS
WARNING: Metal dust build-up.
Extensive use of flap discs in metal
applications can result in the increased
potential for electric shock. To reduce
this risk, insert an RCD before use
and clean the ventilation slots daily by
blowing dry compressed air into the
ventilation slots inaccordance with the
below maintenance instructions.
WALT repair agent.